<?php
/**
 * Zend Framework
 *
 * LICENSE
 *
 * This source file is subject to the new BSD license that is bundled
 * with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://framework.zend.com/license/new-bsd
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@zend.com so we can send you a copy immediately.
 *
 * @category   Zend
 * @package    Zend_Config
 * @copyright  Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 * @version    $Id: Writer.php 18951 2009-11-12 16:26:19Z alexander $
 */

/**
 * @category   Zend
 * @package    Zend_Config
 * @copyright  Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 */
abstract class Zend_Config_Writer
{
	/**
	 * Option keys to skip when calling setOptions()
	 *
	 * @var array
	 */
	protected $_skipOptions = array(
        'options'
        );

        /**
         * Config object to write
         *
         * @var Zend_Config
         */
        protected $_config = null;

        /**
         * Create a new adapter
         *
         * $options can only be passed as array or be omitted
         *
         * @param null|array $options
         */
        public function __construct(array $options = null)
        {
        	if (is_array($options)) {
        		$this->setOptions($options);
        	}
        }

        /**
         * Set options via a Zend_Config instance
         *
         * @param  Zend_Config $config
         * @return Zend_Config_Writer
         */
        public function setConfig(Zend_Config $config)
        {
        	$this->_config = $config;

        	return $this;
        }

        /**
         * Set options via an array
         *
         * @param  array $options
         * @return Zend_Config_Writer
         */
        public function setOptions(array $options)
        {
        	foreach ($options as $key => $value) {
        		if (in_array(strtolower($key), $this->_skipOptions)) {
        			continue;
        		}

        		$method = 'set' . ucfirst($key);
        		if (method_exists($this, $method)) {
        			$this->$method($value);
        		}
        	}

        	return $this;
        }

        /**
         * Write a Zend_Config object to it's target
         *
         * @return void
         */
        abstract public function write();
}
